The CL-12-RB reference
These rest buttons are the CL-12-RB press-fit reference. The source drawing labels A as a diameter with a nominal value of 3/16 inch and an actual value of 0.1885 inch. B is 3/8 inch. C is listed as nominal 1/4 inch and actual 0.2500 inch; D diameter is 3/8 inch.
Match the drawing labels
Keep the dimension letters when comparing this component with your fixture drawing. Nominal fractions and actual decimal values have different purposes in the listing. Do not replace an actual value with the nominal fraction or infer the required mounting-hole tolerance from it.
The request identifies the rest button alone. A fixture body, mounting operation, machine table or supporting assembly is not included. Compare the complete part reference and drawing before deciding whether it is the correct replacement.
A support component for a fixture
Rest buttons provide contact points for supporting or locating workpieces. The product family is used for work supports, side locator pads and jig feet. For this press-fit reference, the component geometry and its mounting position determine how it participates in the fixture. The surrounding design establishes the number of supports and the loads they must carry.
A rest button is often selected as a small replacement part within a larger assembly. Start with that assembly's part reference, then compare the head and mounting features against the lettered drawing. A similar outline can conceal a different height or stem dimension, which matters when the contact point must return to a specified position.
Preserve the decimal values
The A dimension illustrates why nominal and actual values are both recorded. Nominal 3/16 inch equals 0.1875 inch, while the published actual value for this reference is 0.1885 inch. Preserve the actual value during comparison rather than rounding it back to the fraction. The difference is part of the product description and does not itself specify the required mounting-hole fit.
C has a nominal description of 1/4 inch and an actual value of 0.2500 inch. Use the drawing to keep C separate from A. A purchasing note that says only quarter-inch rest buttons would omit the exact reference and could identify the wrong feature. CL-12-RB and the complete dimension table make the intended component clearer.
Count individual rest buttons
Count the locations calling for CL-12-RB in the verified bill of materials. A quantity of three requests three individual rest buttons of this reference; it is not a statement that three supports are suitable for every fixture. The existing design and assembly requirements determine that decision. Other support heights or mounting styles need their own product references.
Quantity and availability
One proposed request unit is one CL-12-RB component. Select the number required and check the SKU, quantity, name and email on the review screen. A submitted request does not reserve parts or establish a delivery date.
Availability, final price and delivery timing must be confirmed before any purchase. The final confirmation is interest only; no payment is collected and no charge, order or fulfillment is authorized.
Questions about CL-12-RB
- Which rest buttons does this page cover?
- CL-12-RB only. Another diameter or mounting arrangement needs a separate verified product reference.
- What is the actual A diameter?
- The listing gives 0.1885 inch, alongside the nominal 3/16-inch size.
- Can I size the mounting hole from the illustration?
- No. Use the installation drawing and specified fits. The illustration is not to scale.
- Is this a complete workholding fixture?
- No. The requested unit is the rest button alone; the surrounding fixture is not included.